Fast entanglement distribution with atomic ensembles and flurescent detection

TY - JOUR

T1 - Fast entanglement distribution with atomic ensembles and flurescent detection

AU - Brask, Jonatan Bohr

AU - Jiang, L.

AU - Gorshkov, A. V.

AU - Vuletic, V.

AU - Lukin, M. D.

AU - Sørensen, Anders Søndberg

PY - 2010/2/12

Y1 - 2010/2/12

N2 - Quantum repeaters based on atomic ensemble quantum memories are promising candidates for achieving scalable distribution of entanglement over long distances. Recently, important experimental progress has been made toward their implementation. However, the entanglement rates and scalability of current approaches are limited by relatively low retrieval and single-photon detector efficiencies. We propose a scheme which makes use of fluorescent detection of stored excitations to significantly increase the efficiency of connection and hence the rate. Practical performance and possible experimental realizations of the new protocol are discussed.

AB - Quantum repeaters based on atomic ensemble quantum memories are promising candidates for achieving scalable distribution of entanglement over long distances. Recently, important experimental progress has been made toward their implementation. However, the entanglement rates and scalability of current approaches are limited by relatively low retrieval and single-photon detector efficiencies. We propose a scheme which makes use of fluorescent detection of stored excitations to significantly increase the efficiency of connection and hence the rate. Practical performance and possible experimental realizations of the new protocol are discussed.

U2 - 10.1103/PhysRevA.81.020303

DO - 10.1103/PhysRevA.81.020303

M3 - Journal article

SN - 2469-9926

VL - 81

SP - 020303(R)

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 2

ER -